I'm trying to remedy this comfort issue with my new pair of M50. At first they really hurt the top of my head after 5 minutes, just the weight of it pressing down on the very top (of my soft and probably misshapen noggin). Truth be told, there's not much padding between the metal bar and your head, and the weight of the headphones push down a good amount.
I bent the headband slightly to a more acute angled curve so that the pressure falls on two points on the top of my head instead, but it still weighs on my soft baby head after about 15 minutes now. The headphones clamp fine but they're not enough to keep the band from pressing to the point of pain.
So I saw this thread http://www.head-fi.org/forum/thread/257522/dt770-headband-cushion-on-denon-d5000 and was wondering if there's a mod I can add to cushion the pad more. I actually added a thin foam pad used to fit bike helmets onto the inner face of the band using rubberbands so I know this would work, but it's not aesthetically pleasing. If I could get some assurance that the linked pad would fit, or something like it, I would buy it.